Three Britons have been found guilty of plotting to kill thousands of people by blowing up passenger jets in mid-air using liquid explosives disguised as soft drinks.
The trio planned to detonate the devices in suicide attacks on seven transatlantic planes heading to major cities in north America.
Their arrests in August 2006 led to huge travel chaos, as hundreds of flights were grounded and thousands of people had their trips disrupted.
They also sparked changes to airport security - including restrictions on carrying liquids on planes - that continue to this day.
Alleged ringleader Abdullah Ahmed Ali, 28, Tanvir Hussain, 28, and Assad Sarwar, 29, were convicted of conspiracy to murder in the airline bomb plot.
Three of their co-accused - Ibrahim Savant, 28, Arafat Waheed Khan, 28, and 25-year-old Waheed Zaman - were found not guilty of planning to blow up planes.
But the jury at Woolwich Crown Court could not reach verdicts on whether Savant, Khan and Zaman were guilty of conspiracy to murder.
Umar Islam, 31, was found not guilty of conspiracy to murder in the liquid bomb trial - but was convicted of conspiracy to murder.
Donald Stewart-Whyte, 23, was acquitted of all charges. He was found not guilty of both conspiracy to murder on aircraft and conspiracy to murder.
With thousands killed in the air and on the ground, the explosions would have exceeded the carnage of the September 11 attacks.
British-born Ali, of Walthamstow, was said to be inspired by the July 7 bombers and Osama bin Laden and considered taking his baby son on his suicide mission.
He planned to smuggle home-made bombs disguised as soft drinks on to passenger jets run by United Airlines, American Airlines and Air Canada.
The hydrogen peroxide devices would have been assembled and detonated in mid-air by suicide bombers.
Ali singled out seven Heathrow flights to San Francisco, Toronto, Montreal, Washington, New York and Chicago that departed within two-and-a-half hours of each other, prosecutors said.
Home Secretary Alan Johnson said: "I am pleased that the jury has recognised that there was a plot to bomb transatlantic flights and that three people have been convicted of that plot.
"This case reaffirms that we face a real and serious threat from terrorism. This was a particularly complex and daring plot which would have led to a terrible attack resulting in major loss of life."
Police said the plot was drawn up in Pakistan with detailed instructions passed to Ali during frequent trips to its lawless border with Afghanistan.
They believe a mystery al Qaeda bombmaker was responsible for the liquid bomb design, concealed within 500ml Oasis or Lucozade bottles.
The jury rejected the defence of Ali, Sarwar, and Hussain that the plot was an elaborate publicity stunt.
The men claimed they wanted to draw attention to an internet propaganda documentary, complete with spoof martyrdom videos, attacking British foreign policy.